Question

Which among the following is a natural number?

• A. $$\sqrt{2\frac12}\times\sqrt{3\frac12}$$
• B. $$\sqrt{7\frac12}\times\sqrt{3\frac13}$$
• C. $$\sqrt{2\frac12}\times\sqrt{3\frac12}$$
• D. $$\sqrt{5\frac15}\times\sqrt{4\frac14}$$

Answer 1

Answer:

$$\sqrt{7\frac12}\times\sqrt{3\frac13}$$

$\sqrt{7\frac12}\times\sqrt{3\frac13}$

$=\sqrt{15/2\times10/3}$

$=\sqrt{25}$

$=5$